Another great feature, would be to have a set of examples for each rule somewhere. There a quite a few rules that I read when I first started playing that I didn't really understand where they would be used. It would be great to have some scenarios written out. Maybe a moderated wiki or something? There are some good examples in the PDGA FAQ, but it'd be nice to have it organized by rule number.

The Rules Q&A is being overhauled right now and will become as official as the rulebook once posted. At some point I would like to see those of us who have officiated big events, write down situations we've encountered and how they were resolved. For example, a marshal witnessed a player at Am Worlds kick their disc lying on the ground in disgust after a hole was completed. The disc surprisingly flew about 100 feet! The marshal gave the player a practice throw penalty.